Improvement in mechanical movements



1. McGLOSKEY. Mech'a nical Movement. No. 168,575; Patented on. mien.

To all whom it may concern:

Be it known that I, J oHN MoOLosKEY, of the city, county, and State of New York, haveinvented an Improvement in Mechanical Movements, of which the following is a specification:

The object of this invention is to provide a noiseless, cheap, strong, and efficient means J rof transmitting rotary motionwithout the use of belts and pulleys, gears, friction-wheels, or pitmen, Worked in Whole or in part by cams or eccentrics.

Theinvention consistsin two shafts, each pro vided with two cranks at an angle to each other, in combination with a disk having two connecting pitmen, the whole 'so arranged that each pitman, with its attached crank, shall act alternately with the other in transmitting rotary motion from one shaft to the other, and each pitman be free to pass the axis of the cranks operating the other, by which means the hereinbefore-indicated object is effectually secured.

Figures 1 and 2 are side views of my improvement, and Fig. 3 is a plan view of the same;.;-'-;'

A and B are two shafts, each having a suitable bearing, a, in any appropriate support. a

Each shaft has at one end a-disk, G, furnished With a crank-pin, b, the two crank-pins b being connected by a pitman or rod, D. Upon the outer end of each crank-pin b isa secondary disk, E, which has upon its outer side a crank-pin, c, in such position that a line drawn from it to the axialline of the shaft A or B, as the case may be, adjoining, would be at angle of,say, thirty to forty-five degrees with another line drawn to the aforesaid axialline from the crank-pin b of its adjacent disk 0, the crank-pins b and c of the two contiguous disks being thus, so to speak, at an angle to each other. The two crankpins c are connected by a rod or pit'inan, F. In the operation of the apparatus, motion is communicated to one or the other, as the case v \may be, of'the shafts A B by means of a crank, G, or other means of producing rotary motion in one of the said shafts, whichis thus made to act as the primary or driving shaft of the device. Motion being given to one of the shafts A B, as just hereinbeforeexplained, one of the crank-pins b, acting through the "NITED STATES PATENT OFFICE.

JoHN MGGLOSKEY, on NEW YORK, N. Y.

IMPROVEMENT IN MECHANICAL MOVEMENTS.

Specification forming part of Letters Patent No. 168,575, dated October 11, 1875 application filed August 20, 1875.

pitman D, actuates the other crank-pin b to rotate the second or other shaft during such portion of therevolution of the two shafts as brings the other cranks c and pitman F at or near the dead-points oftheir rotation. As the cranks I) approach their dead-points the cranks c are brought into position to transmit the rotatory motion of the one shaft to the other during a portion of their revolution, in the same manner as has previously been done by the cranks b. In this way the two sets of cranks b and c, with the connecting pitinen, act ternately to transmit the motion of one shaft to the other, the two pitinen, it will be observed, playing past the axes of their neighboring cranks and the axes of the two shafts without hinderance.

So far as. relates to the scope of this present application, I do not claim a device for transmitting motion in which one pitman actuated by cranks and another actuated by eccentrics are employed in connection for the purpose herein indicated, such combination, embracing an eccentric or eccentrics as an'essential element, being radically different from that herein set forth. and not fitted for the uses to which my invention, as herein set forth, is especially designed. Neither do. I- claim a system of double-elbow levers provided with crank-pinsand connected by rods, as shown in Warren Rowells patent of May 7, 1867 neither do I claim a single lever or rod connecting two cranks, and itself controlled by a slide, as shown in Nelson Reads patent of November 29, 1869, these devices being radically different from mine in constructionand modus opcmndi, and consequently outside of my said invention; but

What I do claim as my invention is- The two shafts A B, carrying the disks 0 E, provided with the crank-pins b c, which are connected by the pitmen F D, the whole combined and arranged substantially as specified, to cause the pitmen to travel simultaneously, but act alternately and both within the same radius from the'axes 0f the shafts A B, as described.

JOHN MGOLOSKEY.

Witnesses:

JAMEs A. WHITNEY, H. WELLS, Jr. 

